Разложите на множители (^ - степень) х^3-х^2+х-1 = ab-2a-2b+4 = ac+bc+2a+2b = a^3-2a^2+a-2 = 3 х+9-ху-3 у=

х^3 - х^2 + х - 1 = (x^3 - x^2) + (x - 1) = x^2 * (x - 1) + 1 * (x - 1) = (x - 1) (x^2 + 1);

ab - 2a - 2b + 4 = (ab - 2a) + (-2b + 4) = a (b - 2) - 2 (b - 2) = (b - 2) (a - 2);

ac + bc + 2a + 2b = (ac + bc) + (2a + 2b) = c (a + b) + 2 (a + b) = (c + 2) (a + b);

a^3 - 2a^2 + a - 2 = а^2 * (a + 2) - (a + 2) = (a + 2) (a^2 - 1) = (a + 2) (a - 1) (a + 1);

3 х + 9 - ху - 3 у = (3 х + 9) - (ху + 3 у) = 3 (х + 3) - у (х + 3) = (3 - у) (х + 3).